Improvement in steam-generator-fltte brushes



n, PETERS, PHOTO mnoGRAPN klei/ent dltiw.

PATRICK H. COYLE, OF NEWARK, NEW JERSEY.

Letters Patent No. 91,523, dated .Tune 22, 1869.

IMPROVEMENT IN STEAM-GENERATOR-FLUE BRUSHES.

The Schedule referred to in these Letters Patent and making part of the same.

Be it known that I, PATRICK H. COYLE, of the city of Newark, county of Essex, and State of N ew Jersey, have invented a new and useful Improvementin Boiler- Flue Brushes; aud I do hereby declare that the following, taken in connection with the drawings, which accompany and form part of this specication, is a description of my invention, sucient to enable those skilled in the art to practise it.

The object of my invention is the construction of a guard for boiler-flue brushes, by means of which the brush can be readily drawn or guided back into the flue afterl having been pushed through the same in cleaning.

In the accompanying drawings- Y Figure 1 represents a longitudinal section of a brush Witnesses WM. A. lALsEY, EDWIN A. PERRY. 

